Hi Balak,
There could be multiple scenarios why the report did not fetch the expected results:
1. The whole server call is excluded. This can be analyzed by fetching data feeds at your end.
2. It only impacted a specific eVar because of the setting of an eVar et cetera.
I know it is a late post, but if you are still facing this issue, I would rather suggest you raise a case with the client care team for review.